Bumper-operated brake



Oct. 28, 1924. y 1,513,483 E. BUCHANAN (l I BUMPER OPERATED BRAKE Filed Jan. 15, 1924 2 Sheets-Sheet 1 Der. 28, Y19214.

E. BUCHANAN BUMPER OPERATED BRAKE Filed Jan. 15. 1924 2 Smeets-Shea!` 2 ations,

Patented oet. 28, 1924.l

-IIN-ir: :es

EUGENE BUCHANAN,

or FALL RIVER, MASSACHUSETTS. v

BUMPER-creeeren BRAKE.

Application filed January 15, '71924. Seriell No. 686,362.

To ,all 1li/1.0m Zr may coal-cern.'

Be it known that I, EUGENE BUCHANAN, a citizen of the United States, residing at Fall River, lin I'the county .of `Bristol and State of Massachusetts, 'have invented certain `new and aisetul 'Improvements .in Bumper-Operated Brakes; and l do hereby declare Athe `following to be a full, clear, and exact description of. the invention, such "as wil-l enable .others skilled in the `art to which it appertains to make and use `the same.

rThe invention relates to ,brake mechanism for vehicles and more particularly .to a bumper-actuated brake .for automobiles and motor vehicles generally, whereby in the event of the bumper striking an vobject the brake is automatically applied and held Iset until released by the driver.

Other objects and advantages :will 'be apparent and suggest thenlise'l-ves as the nature ot the invention -is understood.

Vhile the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet diliierent conditions and requirements, various changes in the form, proportion and minor details of construction may be resorted to without departing from the spirit of the invention.

Referring to the accompanying drawings forming a part of the application:

Figure 1 is a top plan view of the chassis of a motor vehicle provided with a bumperoperated brake mechanism embodying the invention,

Figure 2 is a side view of the parts shown in Figure 1,

Figure 3 is a sectional detail View showing more clearly the means for holding the brake set when applied, the same being taken on the line of Figure 4,

Figure 4 is an enlarged sectional detail on the line of Figure 1, looking in the direction oi the arrows,

Figure 5 is a detail sectional view on the line 5-5 of Figure 3, looking in the direction of the arrows,

Figure 6 is an enlarged detail sectional view on the line 6-6 of Figure 1, and

Figure 7 is a sectional view on the line 7-7 of Figure 6.

Corresponding' and like parts are referred to in the following description and designated in the several views of the drawings by like reference characters.

The vnumeral 1 2 the rear axle, 3 the rear .-axalekhou-sing, 4 the side lbars of the chassis and ,'the bumper which are well :known l,parts of :a motor. vehicle and willich are illustrated-to demonstrate the application `o;t` @the invention.

vLongitudinal bars .6 are .connected .at their forward tends to .the front member .of Athe bumper 5 .and rest upon .the .iront axle 1 and pass through keepers .applied .to `crossbars ,and :Sconnecting ,the longitudinal bars 4. vThe elements 6 constitute brake bars and .areniounted .to receive va longitudinal movement yand their near .endscooperate withguides 9 4applied to the rear axle housing 3. Openings 10 are formed in the rear axle .housing '3 in vline with .the guides .9 `and the rear .ends of 'the brake 'bars 6 4are `adapt-ed to pass vvtherethrough `and en.- gage vprojections 11 fat the vsidesof the axle. 2. :Sleeves `12K-'fitted upon the rearaxlehons-- ing carry the guides 9 and the lat-ter snugly y receives the rear ends of the brake bars 6, thereby preventing dust or foreign matter entering the axle housing or lubricant escaping from the latter. Helical springs 13 normally hold the brake bars 6 projected .for-

wardly and clear the rear axle. j

Projections 15 at the bottom side of 'the brake bars 6 are adapted to be engaged by lock bolts 16 whereby to hold the brake bars when moved rearwardly into engagement with the projections 11 of the rear axle 2. A casing 17 is provided for each of the lock bolts 16 and is attached to the front axle 1 and contains a spring 18 which normally urges the lock bolt outwardly so as to extend in front of hold the brake bar 6 when moved rearwardly into engagement with the projections 11 of the rear axle 2. Links 19 connect the inner ends of the lock bolts 16 with a rod or bar 20 which is connected to'a foot lever 21. When the foot lever '21 is operated, the lock bolts 16 are drawn inwardly out of the pathv of the projections 15, thereby admitting of the springs 13 moving the brake bars 6 forwardly so as to clear the projections of the rear axle.

What is claimed is:

of the projections 11 of the projection 15 and i designates fthe front iaxle,

1. A vehicle brake comprising in combination with a vehicle including an axle and .a housing having an opening therein, a longitudinally movable brake bar adapted to to be operated by enter said opening, and a projection upon the axle to coact with said brake bar whereby to lock the axle against rotation.

2. A vehicle brake comprising in combination with a vehicle including an axle and a housing having an opening therein, a tubular guide communicating with said open ing, a longitudinally movable bar adapted impact with an object, mounted in said tubular guide, and adapted to engage the axle of the vehicle and hold it against movement.

3. A. vehicle brake comprising 'in combination with a vehicle including an axle and a housing having an opening therein, a tubular guide con'iniunicating with said opening, a longitudinally movable bar adapted to be operated by impact with an object, mounted in said tubular guide and adapted to engage the axle of the vehicle and hold it against movement, a spring normally urging the brake bar forwardly, and a locking device adapted to coaet with the brake bar to hold the same in locking engagement with the axle when moved rearwardly by impact.

el. 1n a vehicle provided with a bumper,

a rotating axle and a housing for said axle having an opening therein, a tubular guide,

communicating with said opening, a longitudinally movable bar in cooperative relation with the bumper, mounted in said tubular guide and adapted when moved rearwardly to engage the axle and prevent rotation thereof.

5. ln a vehicle provided with a bumper and a rotating axle, a longitudinally movable bar in cooperative relation with the bumper and adapted when moved rearwardly to engage the axle and prevent rotation thereof, a spring normally urging the brake bar forwardly, a locking device to hold the brake bar when moved rearwardly into locking engagement with the axle, and manually operable means for effecting release of the brake bar.

6. ln a motor vehicle provided with a bumper, longitudinally disposed brake bars in cooperative relation with the bumper and adapted to be moved thereby into locking engagement with the axle, spring meansnormally urging the brake bars forwardly, loclr bolts for holding the brake bars when moved rearwardly into locking engagement Vith the axle, and a lever for effecting release of the brake bars from the lock bolts. ln testimony whereof I aflix my signature in presence of two Witnesses.

EUGENE BUCHANAN.

Witnesses JOSEPH HAYEs, JAMES R. THORNLEY. 

